DB It can be, but context matters. A small amount of white vapour from a cold exhaust can simply be condensation.
When it's more likely to be serious
Persistent thick white smoke once the engine is warm is different. If coolant enters the combustion chamber it can produce white exhaust smoke as it is burned or vaporised, and a blown head gasket is among the potential causes.
What to check alongside the smoke
If you're also losing coolant or the engine is overheating, get the vehicle checked rather than waiting.
DB Autos can investigate white exhaust smoke and identify the cause. Call 01782 844320 or bring your vehicle in.
Got a question about your car's engine? Speak to the team at DB Autos.
Get In Touch →Why Choose DB Autos
DB Autos has been diagnosing and repairing cylinder head and head gasket problems for motorists across Stoke-on-Trent for over 35 years, offering honest diagnosis and clear advice before any work begins. Every job starts with a straightforward conversation about what's needed.